| SKIRSA | OS1/7/2/155 |
| SKIRSA HEAD | OS1/7/2/157 |
| SLATES OF FULLIGOE | OS1/7/2/41 |
| SLAYEL | OS1/7/2/67 |
| SLEAT | OS1/7/2/62 |
| SLICKLY | OS1/7/2/125 |
| SLY CRAIG | OS1/7/2/182 |
| SMALL GOES | OS1/7/2/169 |
| SONSIQUOY | OS1/7/2/161 |
| ST JOHN'S CHAPEL (Site of) | OS1/7/2/46 |
| ST JOHN'S POINT | OS1/7/2/49 |
| ST MADDEN'S CHAPEL (Site of) | OS1/7/2/163 |
| ST TUSTAN'S CHAPEL (Site of) [Brabstermire] | OS1/7/2/111 |
| STACKS OF DUNCANSBAY | OS1/7/2/134 |
| STACKS OF DUNCANSBY [1895] | OS1/7/2/134 |
| STACKS OF MARTIN'S SCLAITE | OS1/7/2/179 |
| STEMSTER | OS1/7/2/129 |
| STONYHILL | OS1/7/2/112 |
| STRIDING MAN | OS1/7/2/147 |
| STROUPSTER | OS1/7/2/127 |
